Divisional Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Illinois, Climate Division 8. Southwest

Average Temperature Rankings, June 1930

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
June 1930 1-Month	73.5°F (23.1°C)	73.9°F (23.3°C)	-0.4°F (-0.2°C)	49th Coolest	Coolest since: 1929	1903
	73.5°F (23.1°C)	73.9°F (23.3°C)	-0.4°F (-0.2°C)	80th Warmest	Warmest since: 1925	1952
	Ties: 1967
May–Jun 1930 2-Month	69.6°F (20.9°C)	69.5°F (20.8°C)	0.1°F (0.1°C)	67th Coolest	Coolest since: 1929	1907
	69.6°F (20.9°C)	69.5°F (20.8°C)	0.1°F (0.1°C)	62nd Warmest	Warmest since: 1922	2018
	Ties: 1950, 1980, 1982
Apr–Jun 1930 3-Month	66.0°F (18.9°C)	64.7°F (18.2°C)	1.3°F (0.7°C)	91st Coolest	Coolest since: 1929	1907
	66.0°F (18.9°C)	64.7°F (18.2°C)	1.3°F (0.7°C)	38th Warmest	Warmest since: 1925	2010
	Ties: 1955, 2005
Mar–Jun 1930 4-Month	60.3°F (15.7°C)	59.7°F (15.4°C)	0.6°F (0.3°C)	75th Coolest	Coolest since: 1929	1960
	60.3°F (15.7°C)	59.7°F (15.4°C)	0.6°F (0.3°C)	54th Warmest	Warmest since: 1925	2012
	Ties: 1973, 1994
Feb–Jun 1930 5-Month	56.9°F (13.8°C)	54.7°F (12.6°C)	2.2°F (1.2°C)	111th Coolest	Coolest since: 1929	1912, 1960, 1978
Feb–Jun 1930 5-Month	56.9°F (13.8°C)	54.7°F (12.6°C)	2.2°F (1.2°C)	18th Warmest	Warmest since: 1925	2012
Jan–Jun 1930 6-Month	51.5°F (10.8°C)	50.8°F (10.4°C)	0.7°F (0.4°C)	78th Coolest	Coolest since: 1929	1912, 1978
	51.5°F (10.8°C)	50.8°F (10.4°C)	0.7°F (0.4°C)	51st Warmest	Warmest since: 1927	2012
	Ties: 1959, 1973, 2022
Dec 1929–Jun 1930 7-Month	49.3°F (9.6°C)	48.5°F (9.2°C)	0.8°F (0.4°C)	77th Coolest	Coolest since: 1929	1978
	49.3°F (9.6°C)	48.5°F (9.2°C)	0.8°F (0.4°C)	51st Warmest	Warmest since: 1925	2012
	Ties: 1981
Nov 1929–Jun 1930 8-Month	48.1°F (8.9°C)	48.0°F (8.9°C)	0.1°F (0.0°C)	57th Coolest	Coolest since: 1929	1912
	48.1°F (8.9°C)	48.0°F (8.9°C)	0.1°F (0.0°C)	71st Warmest	Warmest since: 1925	2012
	Ties: 1903, 1966, 2008
Oct 1929–Jun 1930 9-Month	49.0°F (9.4°C)	49.0°F (9.4°C)	0.0°F (0.0°C)	52nd Coolest	Coolest since: 1929	1912, 1978
	49.0°F (9.4°C)	49.0°F (9.4°C)	0.0°F (0.0°C)	76th Warmest	Warmest since: 1925	2012
	Ties: 1916, 1966
Sep 1929–Jun 1930 10-Month	50.9°F (10.5°C)	51.1°F (10.6°C)	-0.2°F (-0.1°C)	48th Coolest	Coolest since: 1929	1978
	50.9°F (10.5°C)	51.1°F (10.6°C)	-0.2°F (-0.1°C)	80th Warmest	Warmest since: 1928	2012
	Ties: 1928, 1971
Aug 1929–Jun 1930 11-Month	53.0°F (11.7°C)	53.3°F (11.8°C)	-0.3°F (-0.1°C)	43rd Coolest	Coolest since: 1929	1904, 1978
	53.0°F (11.7°C)	53.3°F (11.8°C)	-0.3°F (-0.1°C)	85th Warmest	Warmest since: 1927	2012
	Ties: 1903, 1910, 1945, 2001
Jul 1929–Jun 1930 12-Month	55.1°F (12.8°C)	55.4°F (13.0°C)	-0.3°F (-0.2°C)	46th Coolest	Coolest since: 1929	1904, 1912, 1918, 1978
	55.1°F (12.8°C)	55.4°F (13.0°C)	-0.3°F (-0.2°C)	82nd Warmest	Warmest since: 1927	2012
	Ties: 1900, 1903, 1962, 1971
Jan 1929–Jun 1930 18-Month	53.1°F (11.7°C)	53.8°F (12.1°C)	-0.7°F (-0.4°C)	26th Coolest	Coolest since: 1929	1979
	53.1°F (11.7°C)	53.8°F (12.1°C)	-0.7°F (-0.4°C)	102nd Warmest	Warmest since: 1928	2017
	Ties: 1896, 1912, 1917, 1963, 1971, 1982
Jul 1928–Jun 1930 24-Month	54.9°F (12.7°C)	55.4°F (13.0°C)	-0.5°F (-0.3°C)	33rd Coolest	Coolest since: 1929	1978, 1979
	54.9°F (12.7°C)	55.4°F (13.0°C)	-0.5°F (-0.3°C)	94th Warmest	Warmest since: 1928	2017
	Ties: 1916
Jul 1927–Jun 1930 36-Month	54.8°F (12.7°C)	55.4°F (13.0°C)	-0.6°F (-0.3°C)	24th Coolest	Coolest since: 1920	1979
	54.8°F (12.7°C)	55.4°F (13.0°C)	-0.6°F (-0.3°C)	102nd Warmest	Warmest since: 1929	2018
	Ties: 1899, 1901, 1982
Jul 1926–Jun 1930 48-Month	55.0°F (12.8°C)	55.4°F (13.0°C)	-0.4°F (-0.2°C)	31st Coolest	Coolest since: 1929	1980
	55.0°F (12.8°C)	55.4°F (13.0°C)	-0.4°F (-0.2°C)	94th Warmest	Warmest since: 1928	2019
	Ties: 1899, 1915, 1964, 1997
Jul 1925–Jun 1930 60-Month	54.9°F (12.7°C)	55.4°F (13.0°C)	-0.5°F (-0.3°C)	24th Coolest	Coolest since: 1920	1980
	54.9°F (12.7°C)	55.4°F (13.0°C)	-0.5°F (-0.3°C)	100th Warmest	Warmest since: 1929	2020
	Ties: 1909, 1961, 1973, 1984

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings